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From Fritz Thielemann <fthie...@stahlnetz.com>
Subject Q: TC3.2b3 was interrupting me
Date Thu, 19 Oct 2000 23:08:58 GMT
Hi friends,

I'm sitting here and working with a jsp application for the last two
hours (entering data into a database).
But in the middle of the road (after pressing the submit button to save
changes) there appears a blank page
without any exception or alert. Totally strange, because it was running
before and I haven't done anything except
entering data.
checked all logs (DB? up and running; ConnectionPool? fine; Apache?
working, no errors? tomcat (3.2b3)? nothing)
then I checked the 'view source' in netscape of the blank page and
found:

<h1>Included servlet error: 500</h1>
<h2>Location:/mycontext/go_to_welcome.jsp</h2><b>Internal Servlet
Error:</b><br><pre>javax.servlet.ServletException
        at
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:448)

        at
_0002fhome_0002ejsphome_jsp_1._jspService(_0002fhome_0002ejsphome_jsp_1.java,
Compiled Code)
        at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
        at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:177)

        at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:309)

        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java,
Compiled Code)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
        at
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:387)

        at org.apache.tomcat.core.Handler.service(Handler.java:263)
        at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:371)
        at
org.apache.tomcat.facade.RequestDispatcherImpl.include(RequestDispatcherImpl.java:308)

        at
org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:407)

        at
_0002fgo_0005fto_0005fwelcome_0002ejspgo_0005fto_0005fwelcome_jsp_0._jspService(_0002fgo_0005fto_0005fwelcome_0002ejspgo_0005fto_0005fwelcome_jsp_0.java:129)

        at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
        at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:177)

        at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:309)

        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java,
Compiled Code)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
        at
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:387)

        at org.apache.tomcat.core.Handler.service(Handler.java:263)
        at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:371)
        at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:749)

        at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:695)
        at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java:166)

        at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java,
Compiled Code)
        at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java,
Compiled Code)
        at java.lang.Thread.run(Thread.java:479)
</pre>
<b>Root cause:</b>
<pre>java.lang.NullPointerException
        at
_0002fhome_0002ejsphome_jsp_1._jspService(_0002fhome_0002ejsphome_jsp_1.java,
Compiled Code)
        at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
        at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:177)

        at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:309)

        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java,
Compiled Code)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
        at
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:387)

        at org.apache.tomcat.core.Handler.service(Handler.java:263)
        at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:371)
        at
org.apache.tomcat.facade.RequestDispatcherImpl.include(RequestDispatcherImpl.java:308)

        at
org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:407)

        at
_0002fgo_0005fto_0005fwelcome_0002ejspgo_0005fto_0005fwelcome_jsp_0._jspService(_0002fgo_0005fto_0005fwelcome_0002ejspgo_0005fto_0005fwelcome_jsp_0.java:129)

        at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
        at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:177)

        at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:309)

        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java,
Compiled Code)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
        at
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:387)

        at org.apache.tomcat.core.Handler.service(Handler.java:263)
        at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:371)
        at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:749)

        at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:695)
        at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java:166)

        at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java,
Compiled Code)
        at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java,
Compiled Code)
        at java.lang.Thread.run(Thread.java:479)
</pre>





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